John Rogan
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View article: Environmental Factors Associated With Fall Phytoplankton Blooms in the Northern Bering and Chukchi Seas
Environmental Factors Associated With Fall Phytoplankton Blooms in the Northern Bering and Chukchi Seas Open
This study investigates environmental drivers of fall phytoplankton blooms in the Arctic, focusing on the northern Bering and Chukchi seas. Random Forests models were used to analyze covariates of fall phytoplankton blooms from 2013 to 201…
View article: Factors Influencing Establishment and Post-Establishment Residential Yard Tree Survivorship in Worcester, Massachusetts
Factors Influencing Establishment and Post-Establishment Residential Yard Tree Survivorship in Worcester, Massachusetts Open
Background Urban tree planting programs seek to maintain high levels of planted tree survivorship, as ecosystem services are maximized when trees are fully grown. This study examines survivorship for a cohort planted on residential propert…
View article: DynamicPATCH: method and software for spatially explicit dynamic patch transition characterization
DynamicPATCH: method and software for spatially explicit dynamic patch transition characterization Open
Context: Decades of research have used spatial pattern metrics at time points, such as those in FRAGSTATS, to measure the net change of landscape configuration and composition during time intervals. However, metrics at time points fail to …
View article: Divergent biophysical responses of western United States forests to wildfire driven by eco-climatic gradients
Divergent biophysical responses of western United States forests to wildfire driven by eco-climatic gradients Open
Understanding vegetation recovery after fire is critical for predicting vegetation-mediated ecological dynamics in future climates. However, information characterizing vegetation recovery patterns after fire and their determinants over lar…
View article: Comment on egusphere-2023-1002
Comment on egusphere-2023-1002 Open
Abstract. Understanding vegetation recovery after fire is critical for predicting vegetation-mediated ecological dynamics in future climates. However, information characterizing vegetation recovery patterns after fire and their determinant…
View article: Forest Types Show Divergent Biophysical Responses After Fire: Challenges to Ecological Modeling
Forest Types Show Divergent Biophysical Responses After Fire: Challenges to Ecological Modeling Open
Understanding vegetation recovery after fire is critical for predicting vegetation-mediated ecological dynamics in future climates. However, information characterizing vegetation recovery patterns after fire and their determinants are lack…
View article: Urban Forest Management Motivations and Practices in Relation to a Large-Scale Tree Planting Initiative
Urban Forest Management Motivations and Practices in Relation to a Large-Scale Tree Planting Initiative Open
The success of public trees planted in urban areas by tree planting initiatives (TPIs) depends on how well the new trees fit into existing municipal structures and capacities. We sought to understand municipal management of trees in mid-si…
View article: Forest Types Show Divergent Biophysical Responses After Fire: Challenges to Ecological Modeling
Forest Types Show Divergent Biophysical Responses After Fire: Challenges to Ecological Modeling Open
Datasets and scripts (MATLAB and R) used to document patterns of post-fire biophysical dynamics in seven forest types and 21 Level III ecoregions of the western United States.
View article: Forest Types Show Divergent Biophysical Responses After Fire: Challenges to Ecological Modeling
Forest Types Show Divergent Biophysical Responses After Fire: Challenges to Ecological Modeling Open
Datasets and scripts (MATLAB and R) used to document patterns of post-fire biophysical dynamics in seven forest types and 21 Level III ecoregions of the western United States.
View article: What Makes Wildfires Destructive in California?
What Makes Wildfires Destructive in California? Open
As human impacts from wildfires mount, there is a pressing need to understand why structures are lost in destructive fires. Despite growing research on factors contributing to structure loss, fewer studies have focused on why some fires ar…
View article: Emerging hot spot analysis to indicate forest conservation priorities and efficacy on regional to continental scales: a study of forest change in Selva Maya 2000–2020
Emerging hot spot analysis to indicate forest conservation priorities and efficacy on regional to continental scales: a study of forest change in Selva Maya 2000–2020 Open
Despite the importance of preserving contiguous tropical forest areas to maintain biodiversity and terrestrial carbon stocks, methodological challenges continue to hinder broad-scale analysis of threats to these forests. Emerging Hot Spot …
View article: Tracking forest dynamic trends in Belize: the role of protected areas, agriculture, and fire in the South Eastern Selva Maya
Tracking forest dynamic trends in Belize: the role of protected areas, agriculture, and fire in the South Eastern Selva Maya Open
This is an Accepted Manuscript of an article published by Taylor & Francis in Remote Sensing Letters on 2022-06-05, available online: https://www.tandfonline.com/10.1080/2150704X.2022.2079017. Deposited by shareyourpaper.org and openaccess…
View article: Linking Tree Cover Change to Historical Management Practices in Urban Parks
Linking Tree Cover Change to Historical Management Practices in Urban Parks Open
ContextUrban parks provide critical ecological, health, and social benefits, constituting a substantial proportion of urban tree canopy (UTC) within a given city. As cities set ambitious UTC targets, it is critical to understand the social…
View article: Philadelphia park tree cover data, 1959-2018
Philadelphia park tree cover data, 1959-2018 Open
These data represent tree cover for three parks in Philadelphia, Pennsylvania. Tree cover was manually delineated on aerial imagery from 1959, 1980, 2000 and 2018. The parks studied were: East Fairmount Park, West Fairmount Park, and the S…
View article: A near-real-time approach for monitoring forest disturbance using Landsat time series: stochastic continuous change detection
A near-real-time approach for monitoring forest disturbance using Landsat time series: stochastic continuous change detection Open
Forest disturbances greatly affect the ecological functioning of natural forests. Timely information regarding extent, timing and magnitude of forest disturbance events is crucial for effective disturbance management strategies. Yet, we st…
View article: Mapping spatiotemporal variability of the urban heat island across an urban gradient in Worcester, Massachusetts using in-situ Thermochrons and Landsat-8 Thermal Infrared Sensor (TIRS) data
Mapping spatiotemporal variability of the urban heat island across an urban gradient in Worcester, Massachusetts using in-situ Thermochrons and Landsat-8 Thermal Infrared Sensor (TIRS) data Open
Landsat-8 derived Land Surface Temperature (LST) is used to measure Surface Urban Heat Island (SUHI) patterns and intensity in Worcester, MA, USA. Additionally, near-surface air temperature variability is measured using in-situ sensors to …
View article: Priorities for governing large-scale infrastructure in the tropics
Priorities for governing large-scale infrastructure in the tropics Open
National governments, International Financial Institutions, and the G-20 have intensified investments of infrastructure to boost economic growth in the wake of economic recessions and the impacts of the COVID-19 pandemic. This infrastructu…
View article: A Near-Real-Time Approach for Monitoring Forest Disturbance Using Landsat Time Series: Stochastic Continuous Change Detection
A Near-Real-Time Approach for Monitoring Forest Disturbance Using Landsat Time Series: Stochastic Continuous Change Detection Open
Forest disturbances greatly affect the ecological functioning of natural forests. Timely information regarding extent, timing and magnitude of forest disturbance events is crucial for effective disturbance management strategies. Yet, we st…
View article: Accounting for Training Data Error in Machine Learning Applied to Earth Observations
Accounting for Training Data Error in Machine Learning Applied to Earth Observations Open
Remote sensing, or Earth Observation (EO), is increasingly used to understand Earth system dynamics and create continuous and categorical maps of biophysical properties and land cover, especially based on recent advances in machine learnin…
View article: Resource extraction and infrastructure threaten forest cover and community rights
Resource extraction and infrastructure threaten forest cover and community rights Open
Significance While infrastructure expansion has been broadly investigated as a driver of deforestation, the impacts of extractive industry and its interactions with infrastructure investment on forest cover are less well studied. These cha…
View article: Why German Entrepreneurs Seek Equity via Crowdfunding?
Why German Entrepreneurs Seek Equity via Crowdfunding? Open
Equity crowdfunding, financing a project or venture through many small investments of a large group of investors, has received growing attention from the media and scholars. This study focuses on what motivates entrepreneurs to crowdfund i…
View article: Cross-Scale Correlation between In Situ Measurements of Canopy Gap Fraction and Landsat-Derived Vegetation Indices with Implications for Monitoring the Seasonal Phenology in Tropical Forests Using MODIS Data
Cross-Scale Correlation between In Situ Measurements of Canopy Gap Fraction and Landsat-Derived Vegetation Indices with Implications for Monitoring the Seasonal Phenology in Tropical Forests Using MODIS Data Open
Deciduousness in dry tropical forests results in substantial seasonal changes to canopy gap fractions. The characterization of such structural properties over large areas is necessary for understanding energy and nutrient distribution with…
View article: The effect of natural habitat and human activities on large cat’s predation risk in a tropical landscape: including spatial and temporal scales in a two-dimensional approach
The effect of natural habitat and human activities on large cat’s predation risk in a tropical landscape: including spatial and temporal scales in a two-dimensional approach Open
Livestock predation by large cats represents a threat both to livestock production and to large cat conservation when retaliation occurs. Therefore, understanding the factors that influence the occurrence of attacks and their spatial distr…